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Editor's note: The following are questions received from viewers of "Mad Money," seen every day at 6 p.m. EST on CNBC.

What are your thoughts about RFID companies like Symbol Technologies( SBL)?-- Jahan from Texas

Jim Cramer

: This is a great technology, but Symbol and the other publicly traded company in this space,

Zebra Technologies

(ZBRA) - Get Zebra Technologies Corporation Report

, have consistently disappointed investors. With that in mind, I'd avoid the sector for the time being.

You have inspired me. I am a new investor, looking to put $2,000 into the market. What is the best way to ensure that I am diversified?-- Mark from Florida

Jim Cramer

: In my opinion, when you're starting out with less than $5,000 or $10,000, the best way to stay diversified is with mutual funds.

I enjoyed your special on "Green" stocks last week and was wondering if there were any companies to invest in that made hybrid engines?-- Ryan from Texas

Jim Cramer

: One pure play on this space is

Impco Technologies

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At the time of publication, Cramer had no position in the stocks mentioned.

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